Attachment for newspaper press inking roller shafts



Filed June 4, 1949 L J GRINER ATTACHMENT FOR NEWSPAPER PRESS INKINGROLLER SHAFTS July 4, 1950 INVENTOR LESLIE J GR/NER' BY TTORN YSPatented July 4, 1950 64 ATTACHMENT Fox Nii f .SRABER INKING Ronn snA Tsrin s ma -13 mm, DetroiigrMiclt-r; assignnritowAlico,

-Incor1iora'ted, West Springfield,

ration ,gf Massachusetts Application June 4, 194g, g

2 Claims. (Cl. toil-k2 and effective construction to provide for theIB-fi'zj movable support of such rollers from the press withoutstraining bearing assemblies for the rollers.

As is well known in the art, inking rollers are heavy rubber coveredcylinders mounted to dis-- tribute, spread, and transfer the printingink on various drums and cylinders of the press. They are more or lessfrequently removed from the press unit for purposes of repair andreplacement.

The necessity for removal or rollers with relative frequency has createda problem in connection with bearing supports for the roller shafts. Ina pending application Serial No. 86,186, filed April 8, 1949, forAttachment for Newspaper Press Inking Roller Shafts" by Arnold L.Imshaug, a shaft attachment is disclosed to overcome such objectionablefeatures and the present application is directed to the same generalproblem. The present construction is, however, specifically different insome aspects and has in particular newspaper press units specificadvantages over the constructions shown by the aforesaid pendingapplication.

The nature of the present construction will be pointed out in thedescription of the same as shown by the accompanying drawings, in which,

Fig. l is a sectional view of the attachment mounted in the clamp of apress unit and supporting an inking roller thereby; and

Fig. 2 is a sectional view on line 2-2 of Fig. 1.

On the side frame I of a press unit is secured a usual type of mountingbracket 2 as by a bolt 3. The bracket is in the formof a split clampwith base 4 and cap 5 held in clamped position by a bolt 6 pivoted onthe base 4 and swung into an open ended slot 1 of the cap. A wing nut 8clamps the cap to the base.

The socket of the clamp, as will be understood by those familiar withthis type of mechanism, usually consists of a split cylindrical bushing,one half set in the cap and the other half in the base. In such a,bushing the end of a roller shaft is usually journaled.

As shown by the drawings, I have provided herein a cylindrical sleeve 9to be held in the socket of the clamp. The sleeve extends inwardlybeyond the clamp with an enlarged shouldered inner end set against theinner face ll of the clamp. Set in the enlarged engl -ti=on 1.?!.narrowed from zsaidrcollar' l6. gThe .col-

Mass, a corpoerial i310. 9%,267

:10 as by.-a pres-s-fit-is an anti-friction bearing,

-- he: inkin roller i3. is mounted; by shaft l 4 .rwhic-hz-as. shown isaformedwith a hub portion 215; all reduced collar. portion lfigand: anend poras atballi bearing assembly-712.1

--lar portion-i I6 is set .inthe bearing l l 2 ;;the, inner race 18being held between the rim 19 of the shaft collar and the shouldersurface 20 of the sleeve 9. It will benoted that the inner edge portionof the shoulder surface 20 abuts the shoulder 2| separating shaftportions l6 and H.

The interior surface of sleeve 9 is closely spaced from the endextension ll of the shaft, the latter freely rotating when the axis ofthe shaft is substantially identical with the axis of the sleeve. Asshown by Fig. 1 the inner bore of sleeve 9 is slightly tapered toprovide for any slight wobbling or misalignment of the shaft andextension I! in the sleeve.

It will be seen that when the cap 5 is swung from clamping position andthe sleeve is no longer held by the clamp in axial alignment with theshaft the narrowed portion I! will be prevented from excessive angularmovement axially of the closely spaced sleeve 9. The bearing II willthus remain intact. The spacing of the sleeve and shaft will keep theweight of the heavy inking roller from straining and buckling thebearing. The bearings thus can not twist loose from the raceways.

While the construction of the attachment disclosed may be adapted forany newspaper press unit mounting assembly for the inking rollers it hasspecial application in certain press units wherein the frame wall I willbe found to abut the outer end of the mounting clamp and the spacingbetween the inking roller end and clamp is limited. In the aforesaidpending application an attachment is disclosed to be used in connectionwith brackets found in many press installations where space limitationsdo not interfere with the extension of the roller shaft end beyond theclamp, and in which the spacing between roller and clamp does not createlimiting factors all as will be appreciated from the relativepositioning of the parts in the accompanying drawings.

Having described my invention I claim:

1. In a newspaper press inking roller shaft attachment assembly with asplit clamp for mounting the shaft on a fixed support, a roller shafthaving a narrowed end portion for extending within the socket of saidclamp, an adjacent collar portion of greater diameter than said endportion, and a shouldered hub portion adjacent thereto of greaterdiameter than said collar portion, a sleeve encasing said narrowed endextension in closely spaced immediately adjacent relation and providedwith an enlarged shouldered inner end portion encircling said collar,and an anti-friction bearing snugly fitted in said enlarged end of saidsleeve and held on said collar by the inner vertically disposed portionof said shouldered enlargement and the shoulder of said.

hub, whereby said roller shaft is journaled in said bearing on thecollar, said spacing between. the encasing sleeve and said shaft endextension restricting the relative axial movement of the same to asubstantially parallel relation when the sleeve is unsupported by saidclamp.

2. In a newspaper press inking roller shaft attachment assembly with asplit clamp for mounting the shaft on a fixed support, a roller shafthaving a narrowed end portion for extend 1 ing within the socket of saidclamp, a hub portion of larger diameter adjacent the body of the inkingroller and a stepped collar portion between the end and hub portions ofgreater diameter than said end extension, a sleeve encasing saidnarrowed end extension and engageable by said split clamp, the bore ofsaid sleeve being outwardly tapered and of slightly greater diameteribetween the end extension and. encasing sleeve p t n.-

. LESLIE J. GRINER.

REFERENCES CITED The-following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,781,467 Madsen d. Nov. 11, 19301,980,580 Gilmore NOV. 13,-1934 2,451,620 7 Holmes Oct. 19, 1948 IFOREIGN PATENTS Numberv Country Date 382,616 U Great Britain Oct. 25,1932

